Machine for stamping or marking cans.



B H. BARTHOLD.

MACHINE FOR STAMPING 0R MARKING CANS.

APPLICATION FILED APR. 27. I9l4.

I. 9 1% ?91 Patented May 25, 1915.

3 SHEETSSHEET I.

WITNESSES: @074 v i By ATTORNEY THE NORRIS PEYERS C0,. PHOTO-LIYHCL. WASHING TON, D. c.

B. H. BARTHOLD.

MACHINE FOR STAMPING )R MARKING CANS, APPLICATION FILED APR. 21. 1914.

1 9 1 79 1 D Patented May 25, 1915.

3 SHEETS-SHEET 2.

WITNESSES %,g. ATORNEY THE NORRIS PETERS CO.,PHO1O-LITHO., WASHINGTON D C.

B. H. BARTHOLD. MACHINE FOR STAMPING 0R MARKING CANS. APPLICATION FILED APR. 21, 1914.

1 14,391 a Patented May 25, 1915.

3 SHEETS-SHEET 3.

WITNESSES;

w. ATTORNEY;

(HE NORRIS PETERS CO" PHOTO'LVTHO WASHINGTON, D, I

UNTTED STATES PATNT @TTTfiE.

BERNI-IARDT HENRY BARTHOLD, OF SAN JOSE, CALIFORNIA.

MACHINE FOB STAMPING OR MARKING CANS.

manner.

To all whom it may concern:

Be it known that I, BERNHARDT HENRY BARTHOLD, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Machines for Stamping or Marking Cans, of which the following is a specification.

This invention relates to a new and useful machine for stamping or marking cans. Heretofore it has been customary in canneries to stamp or mark cans as may be desired by hand by means of a rubber stamp, a number of operators being usually required for the work, and constant vigilance is necessary to prevent mistakes in the operation so that some of the cans will not be wrongly marked. At the present time the sanitary type of can is largely used, the

,ends being rolled on to the body instead of soldered.

The applicant is not aware that prior to his invention any machine has been devised by means of which cans of said type can be marked or stamped in a manner similar to hand work.

My invention as shown and described is particularly designed to work in connection with the can closing machine known as the Johnson, type J double seamer, but the same can be adapted to any other known type of double seaming can closing machine by a slight change in the driving mechanism as may occur to anyone skilled in the art to which the invention relates. Particularly novel advantages of the machine embodying my invention are, its simplicity, the parts being so combined as not to be liable to become disarranged in any respect, the rapidity with which one mark or stamp can be changed for another and also the rapid adjustment of the device for accommodating cans of various heights.

My invention consists in the combination and arrangement of parts shown in the accompanying drawings, described in the following specification and particularly pointed out in the appended claims.

Referring to the accompanying drawings Figure 1 is a plan view of the machine containing my invention. Fig. 2 is a side view of the same, showing the marking stamp in a horizontal position when the plunger hereinafter described is at its highest point. ig. 3 is also a side view of the device, show- Specification of Letters Patent.

Patented May 25, 1915.

Application filed April 27, 1914. Serial No. 834,712.

ing said stamp in position to mark a canhead, the plunger being at its lowest point. Fig. 4 is a detail sectional view of the spring-cushion stamp holder. Fig. 5 is a partial view of the can closing machine known as the Johnson type J, double seamer with my can-marking device connected thereto, said can-closing machine being designated with the letter A.

In the drawings, 1 represents a main frame, which is provided with lugs containing openings penetrated by screws 2, by means of which the device can be secured to any suitable can-heading machine, and said frame has other parts which are hereinafter mentioned. The device is provided with a bracket 3 also to be secured to such machine, the said bracket having an opening by means of which the arm 4: is pivotally secured to said bracket as shown. Said arm 4 is an extension of the lever for the double-seaming head of the can closing machine shown in Fig. 5, being suitably attached to said lever shown in dotted lines in said figure, and its end shown in Fig. 1 diverges into two branches or forks 5 for the operation of my said marking device, said forks being provided with a pin 6 eX- tending between the same and penetrating the upper end of plunger 7 so that when the arm 4 is oscillated such movement of the arm gives the plunger a vertical reciprocating motion. The main frame is provided with a slideway 8 for the movement therein of the plunger 7. The lower end of said plunger is reduced and centrally penetrates and has pivoted thereto by means of a pin 9 a turnable piston cylinder 10. The said piston cylinder has a chamber in its lower portion containing a piston 11, the piston being provided with a boX 11 containing a coil spring 12 which bears against the bottom of said box. The lower end of said piston-cylinder has an opening in which the short rod of said piston is slidable. The lower end of said piston rod is bored or otherwise suitably arranged for the holding of a stamp 13 preferably of rubber for the marking of cans. The upper portion of the piston-cylinder is provided with a neck having a hook on one side thereof to which is secured the lower end of a spring 19 upwardly secured to the frame 1 as shown. Said spring maintains the stamp as secured normally in a vertical position for the operation of marking. The neck of said piston cylinder has a cam 2-0 extending from one side thereof as shown to engage the stop 21 projecting inwardly from the frame 1, for turning the stamp to one side for engagement with the inking-roller hereinafter mentioned. Secured to the frame 1 by an arm 25 is a support for an ink-holder and roller, said ink-holder 15 having a well preferably of V section. The ink-holder has an opening in its lower end containing a felt pad 16 or other suitable absorbent material for slowly feeding ink tothe inkingroller 14, which is mounted on and turns with an axle 28 in suitable bearings in the lower portion of support 30. On one end of said axle is secured a ratchet wheel 18. Above said ratchet wheel a pawl 31 is pivotally secured to said support so as to engage said ratchet wheel, the pawl being kept in engagement with said ratchet wheel by a spring as shown. Said ratchet wheel and pawl preventthe inking-roller from r0- tating in but one direction for inking the stamp 13, and as each can is stamped the roller makes a partial revolution, presenting a freshly inked surface to the stamp for subsequentoperation. The inking roller is turned to the necessary extent by the contact of the stamp therewith or the turning movement may be accomplished by other suitable means. The movable arm 4 actuating the plunger 7 times the operation of the stamping movement of the stamp 18 with the discharge of each can from the can heading machine, consequently the can is discharged so as to bring it into proper position for engagement with the stamp for the purpose of marking. My said stamping device can be operated by any suitable means as well as by the lever of the can closing machine shown in Fig. 5 of the drawings.

The manner of operation of the stamp 13 is as follows: lVhen the plunger 7 is drawn upwardly by the'movement of arm 1, the cam 20 engages the stop '21 causing the piston 11 and stamp 13 to rise from their vertical position toa horizontal position, bringing the stamp into engagement with the roller as shown in Fig. 2, the plunger being cut out at 24: to permit the turning of the piston-cylinder into such position. When "the plunger 7 descends the spring 19 re turns the stamp to the vertical position for the operation of stamping as shown in Fig. 8, the stamping being done directly in the center of the can-head. In Fig. 5 the stamp 13 is shown in contact with a can 81, said can being shown in the can-guide 32 of the can-closing machine immediately after the operation of closing it has taken place. The spring 12 in piston-box 11 renders the device effective for the stamping of cans of various heights as any increase in the height of one can from another as used will be the can-closing machine while the operation of closing the can is taking place, thereby keeping the top of the can clean so that the stamp can properly print on the tin, whereas if the can-head contains any liquid the operation of stamping may be impossible.

In the use of the device any. suitable type of rubber stamp may be used mounted on wood or metal, or individual rubber type can be set in a suitable holder which can'be substituted for the stamp, and by keeping several stamps containing the proper type on hand a difle'rent impression may be placed on the cans to be marked.

I am aware that minor changes in the construction, arrangement, and combination of parts of my device may be made and substituted for those herein shown and de-v scribed without in the least departing from the nature and v principle of my invention.

'I claimy a 1. In a can-marking device a main frame, a vertically extending plunger in said frame,

means for the vertical movement of said plunger connected upwardly thereto, a turnable stamp-holder having a cam pivotally secured to the lower end of said plunger, a springpressed stamp in said stamp-holder, an inking-device for said stamp supported by said frame, a stop for turning said holder carrying said stamp into a horizontalposition for engagement with said inking-device upon the upward movement of said plunger and resilient means for returning said holder and said stamp into a vertical position upon the downward stroke of said plunger.

2. In a can-marking device a frame, having a vertical slideway in its upper portion and a stop in its lower portion, a vertically slidable plunger in said slideway and projecting 'therethrough; a piston cylinder having an opening in its lower end and pivotally secured to and penetrated by the lower end of said plunger; a piston in said piston-cylinder under said end of said plunger, provided with an upwardly open box,

and having a short rod projecting through the lower end of said piston-cylinder; a stamp removably secured in the lower end of said rod; a spring'in said box; a cam on the wall of said piston-cylinder engageable wlth said stop; a spring upwardly secured to said frame and downwardly secured to said plunger in proximity to said cam, and

turnable into said recess having an opening in its lower end and pivotally secured to the lower end of said plunger, a piston in said piston-cylinder having an upwardly open box and a short rod projecting through the lower end of said piston cylinder; a stamp removably secured in the lower end of said rod, a spring in said boX bearing against the base thereof; a cam on the wall of said piston-cylinder engageable with said stop; a spring upwardly secured to said frame and downwardly secured to the wall of piston-cylinder and an inking device secured to said frame and positioned for engagement with said stamp.

In testimony whereof I affiX my signature, in presence of two witnesses.

BERT HENRY BARTHOLD.

Witnesses R. B. FUAT, C. MoCuLLoUoH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

